ID A0A1V2RRL4_9ACTN Unreviewed; 413 AA.
AC A0A1V2RRL4;
DT 07-JUN-2017, integrated into UniProtKB/TrEMBL.
DT 07-JUN-2017, sequence version 1.
DT 24-JAN-2024, entry version 22.
DE RecName: Full=Tryptophan synthase beta chain {ECO:0000256|HAMAP-Rule:MF_00133};
DE EC=4.2.1.20 {ECO:0000256|HAMAP-Rule:MF_00133};
GN Name=trpB {ECO:0000256|HAMAP-Rule:MF_00133};
GN ORFNames=STBA_59020 {ECO:0000313|EMBL:ONK15089.1};
OS Streptomyces sp. MP131-18.
OC Bacteria; Actinomycetota; Actinomycetes; Kitasatosporales;
OC Streptomycetaceae; Streptomyces.
OX NCBI_TaxID=1857892 {ECO:0000313|EMBL:ONK15089.1, ECO:0000313|Proteomes:UP000189065};
RN [1] {ECO:0000313|EMBL:ONK15089.1, ECO:0000313|Proteomes:UP000189065}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MP131-18 {ECO:0000313|EMBL:ONK15089.1,
RC ECO:0000313|Proteomes:UP000189065};
RA Paulus C., Rebets Y., Tokovenko B., Nadmid S., Terekhova L.P.,
RA Myronovskyi M., Zotchev S.B., Rueckert C., Kalinowski J., Luzhetskyy A.;
RT "New natural products identified by combined genomics-metabolomics
RT profiling of marine Streptomyces sp. MP131-18.";
RL Submitted (JUN-2016) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: The beta subunit is responsible for the synthesis of L-
CC tryptophan from indole and L-serine. {ECO:0000256|HAMAP-Rule:MF_00133}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(1S,2R)-1-C-(indol-3-yl)glycerol 3-phosphate + L-serine = D-
CC glyceraldehyde 3-phosphate + H2O + L-tryptophan;
CC Xref=Rhea:RHEA:10532, ChEBI:CHEBI:15377, ChEBI:CHEBI:33384,
CC ChEBI:CHEBI:57912, ChEBI:CHEBI:58866, ChEBI:CHEBI:59776; EC=4.2.1.20;
CC Evidence={ECO:0000256|ARBA:ARBA00000003, ECO:0000256|HAMAP-
CC Rule:MF_00133};
CC -!- COFACTOR:
CC Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC Evidence={ECO:0000256|ARBA:ARBA00001933,
CC ECO:0000256|HAMAP-Rule:MF_00133};
CC -!- PATHWAY: Amino-acid biosynthesis; L-tryptophan biosynthesis; L-
CC tryptophan from chorismate: step 5/5. {ECO:0000256|ARBA:ARBA00004733,
CC ECO:0000256|HAMAP-Rule:MF_00133}.
CC -!- SUBUNIT: Tetramer of two alpha and two beta chains.
CC {ECO:0000256|ARBA:ARBA00011270, ECO:0000256|HAMAP-Rule:MF_00133}.
CC -!- SIMILARITY: Belongs to the TrpB family. {ECO:0000256|ARBA:ARBA00009982,
CC ECO:0000256|HAMAP-Rule:MF_00133}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:ONK15089.1}.
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DR EMBL; LZNS01000001; ONK15089.1; -; Genomic_DNA.
DR RefSeq; WP_077062032.1; NZ_LZNS01000001.1.
DR AlphaFoldDB; A0A1V2RRL4; -.
DR STRING; 1857892.STBA_59020; -.
DR OrthoDB; 9766131at2; -.
DR UniPathway; UPA00035; UER00044.
DR Proteomes; UP000189065; Unassembled WGS sequence.
DR GO; GO:0004834; F:tryptophan synthase activity; IEA:UniProtKB-UniRule.
DR CDD; cd06446; Trp-synth_B; 1.
DR Gene3D; 3.40.50.1100; -; 2.
DR HAMAP; MF_00133; Trp_synth_beta; 1.
DR InterPro; IPR006653; Trp_synth_b_CS.
DR InterPro; IPR006654; Trp_synth_beta.
DR InterPro; IPR023026; Trp_synth_beta/beta-like.
DR InterPro; IPR001926; TrpB-like_PALP.
DR InterPro; IPR036052; TrpB-like_PALP_sf.
DR NCBIfam; TIGR00263; trpB; 1.
DR PANTHER; PTHR48077:SF3; TRYPTOPHAN SYNTHASE; 1.
DR PANTHER; PTHR48077; TRYPTOPHAN SYNTHASE-RELATED; 1.
DR Pfam; PF00291; PALP; 1.
DR PIRSF; PIRSF001413; Trp_syn_beta; 1.
DR SUPFAM; SSF53686; Tryptophan synthase beta subunit-like PLP-dependent enzymes; 1.
DR PROSITE; PS00168; TRP_SYNTHASE_BETA; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605, ECO:0000256|HAMAP-
KW Rule:MF_00133};
KW Aromatic amino acid biosynthesis {ECO:0000256|ARBA:ARBA00023141,
KW ECO:0000256|HAMAP-Rule:MF_00133};
KW Lyase {ECO:0000256|ARBA:ARBA00023239, ECO:0000256|HAMAP-Rule:MF_00133};
KW Pyridoxal phosphate {ECO:0000256|ARBA:ARBA00022898, ECO:0000256|HAMAP-
KW Rule:MF_00133}; Reference proteome {ECO:0000313|Proteomes:UP000189065};
KW Tryptophan biosynthesis {ECO:0000256|ARBA:ARBA00022822, ECO:0000256|HAMAP-
KW Rule:MF_00133}.
FT DOMAIN 65..390
FT /note="Tryptophan synthase beta chain-like PALP"
FT /evidence="ECO:0000259|Pfam:PF00291"
FT MOD_RES 100
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00133"
SQ SEQUENCE 413 AA; 44062 MW; B752BE38193F106B CRC64;
MPVEHFFPDP EGRVPGPGGY FGDYGGTFIP EALRAAVEEV AAEYEKAKDD PAFAAELDEL
LVHYTGRPSP LTEVPRFAAR AGGARVFLKR EDLNHTGSHK INNVLGQALL TRRMGKTRVI
AETGAGQHGV ATATACALFG LDCTIYMGEI DTERQALNVA RMRMLGAEVV PVSSGSRTLK
DAINEAFRDW VANVGHTHYL FGTVAGPHPF PTLVRDFHRV IGVEARRQIQ ERAGRLPDAV
VACVGGGSNA IGLFHAFIPD ADVRLVGCEA AGHGVESGEH AATLTAGEPG ILHGSRSYVL
QDEEGQITEP YSISAGLDYP GIGPEHAYLK DAGRGEYRPV TDEQAMQALR LLSRAEGIIP
AIESAHALAG ALDLGRELGE DGLILVNLSG RGDKDMDTAA RYFGLYDGEG DAK
//
